20484585

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{1427}}^1$

素因数の和:1478

約数の個数: 48

約数和(自身を含む): 40098240

約数和(自身を除く): 19613655

約数列:

[1, 3, 5, 9, 11, 15, 29, 33, 45, 55, 87, 99, 145, 165, 261, 319, 435, 495, 957, 1305, 1427, 1595, 2871, 4281, 4785, 7135, 12843, 14355, 15697, 21405, 41383, 47091, 64215, 78485, 124149, 141273, 206915, 235455, 372447, 455213, 620745, 706365, 1365639, 1862235, 2276065, 4096917, 6828195, 20484585]

約数ペア:

[(1, 20484585), (3, 6828195), (5, 4096917), (9, 2276065), (11, 1862235), (15, 1365639), (29, 706365), (33, 620745), (45, 455213), (55, 372447), (87, 235455), (99, 206915), (145, 141273), (165, 124149), (261, 78485), (319, 64215), (435, 47091), (495, 41383), (957, 21405), (1305, 15697), (1427, 14355), (1595, 12843), (2871, 7135), (4281, 4785)]